Reloadron
Contributing Member
I know several users here are using QuickLoad software and I have done some reading on the software. I did check out a few reviews including QuickLOAD Review at 6mm BR. I can appreciate that much ballistic information can be calculated using readily available formulas.
What has me curious is how QuickLoad calculates chamber pressure? Short of instrumentating a barrel with a strain gauge or pizeo transducer and only using the user input how does it calculate chamber pressure? If chamber pressure can be calculated using a number of known data then why using the elaborate systems we use? Again, I can appreciate the numbers QuickLoad produces are subject to some error as chamber pressure has so many variables. I am just curious how accurate the software is?
For example the Lyman 49th Edition (and others) list chamber pressures for a good many loads expressed in CUP or PSI. Keeping in mind the numbers were a result of test performed on a bench with their test barrel. The results for any given load will vary test barrel to test barrel. If I were to input the load data for a specific load into QuickLoad how close would the QuickLoad data be to the published Lyman data?
So my question for those familiar with QuickLoad is how credible are the chamber pressure numbers and does anyone have a clue how those numbers are derived? I have no problem plopping down $150 or so for the software I am just real curious how it calculates chamber pressure.
My questioning here is a result of another thread and I didn't want to drag the other thread off topic.
Thanks
Ron
What has me curious is how QuickLoad calculates chamber pressure? Short of instrumentating a barrel with a strain gauge or pizeo transducer and only using the user input how does it calculate chamber pressure? If chamber pressure can be calculated using a number of known data then why using the elaborate systems we use? Again, I can appreciate the numbers QuickLoad produces are subject to some error as chamber pressure has so many variables. I am just curious how accurate the software is?
For example the Lyman 49th Edition (and others) list chamber pressures for a good many loads expressed in CUP or PSI. Keeping in mind the numbers were a result of test performed on a bench with their test barrel. The results for any given load will vary test barrel to test barrel. If I were to input the load data for a specific load into QuickLoad how close would the QuickLoad data be to the published Lyman data?
So my question for those familiar with QuickLoad is how credible are the chamber pressure numbers and does anyone have a clue how those numbers are derived? I have no problem plopping down $150 or so for the software I am just real curious how it calculates chamber pressure.
My questioning here is a result of another thread and I didn't want to drag the other thread off topic.
Thanks
Ron